Wastebasket Liner Holder and Liners

ABSTRACT

A liner mounting system for receptacles such as wastebaskets allows a flexible liner to be supported within the receptacle without having a portion of the liner draped over the receptacle rim. A liner support is positioned on the inner sidewall of the receptacle near the rim and a support arm engages the liner. In one version the liner support is an integral part of the receptacle. In another version the liner support is attached to a rod which is adjustably supported within the receptacle. A selected number of rods can be sued to adapt the system to the size and configuration of the receptacle. A series of mounting apertures may be formed in the liner to allow the liner to be suspended from the support arm. In another version the liner support is a clamp which accepts a portion of the liner.

PRIORITY

This application claims priority from U.S. Patent application Ser. No.61/090,580, filed Aug. 20, 2008, which is hereby incorporated herein inits entirety by reference.

FIELD OF THE INVENTION

The present invention relates to holders that retain a wastebasket linerwithin the wastebasket in a manner which supports the liner withoutrequiring the liner to overlap the rim of the wastebasket.

BACKGROUND OF THE INVENTION

It is a common practice to use a wastebasket liner to keep the interiorsurface of the wastebasket clean. Typically, such liners are bags formedof thin flexible plastic that will accommodate variations in size andshape of the wastebasket. Such liners are commonly inserted inside thewastebasket with the open end of the liner draped across the rim of thewastebasket in order to retain the liner in position. A portion of theliner thus covers part of the exterior surface of the wastebasket,presenting an untidy appearance and covering any decorative design thesurface may have.

Use of various devices to hold flexible trash liners are wellrepresented in the prior art.

U.S. Pat. No. 6,676,092 (Tsai) teaches and describes a size adjustabletrash bag holder which is used independently of a wastebasket or othertrash container and which illustrates the insertion and holding of atrash bag or liner.

U.S. Pat. No. 5,662,238 (Sarno) teaches and describes a container linerholder assembly having frame sized and shaped to fit the rim of a trashcontainer such that the liner can be placed within the frame and drapedover the outer portions of the frame. A cap overlaps the frame when theframe is placed on the trash container and snaps into place to hold theframe and retain the liner within the trash container.

U.S. Pat. No. 5,671,861 (Hall et al) teaches and describes a holder forsupporting plastic bags with the bags having loop-type handles. Thehandles are draped over an upstanding portion of the holder and a seriesof internally-formed clips grip the inner surface of the bags.

SUMMARY OF THE INVENTION

In accordance with a first aspect of the present invention, awastebasket liner holder is provided as an integral part of thewastebasket having a plurality of liner retainers formed on the interiorsurface of the wastebasket proximate the wastebasket rim allowing aplastic liner to be placed within the wastebasket and supported withouthaving the liner overlap or extend past the rim of the wastebasket tocover or obscure part of the wastebasket's decorative outer surface.

In accordance with another aspect of the present invention, awastebasket liner holder is provided in a kit form which can be adjustedto accommodate various sizes and shapes of wastebaskets and whichprovides liner retainers allowing the liner to be placed in thewastebasket and supported without overlapping the wastebasket rim or anypart of the wastebasket.

In accordance with another aspect of the present invention, wastebasketliners are provided with mounting ports corresponding in shape andposition to the liner retainers.

These and further aspects of the present invention will become moreapparent from the following description which, when taken in connectionwith the accompanying drawings show, for the purpose of illustrationonly, the foregoing and other aspects of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a prior art wastebasket;

FIG. 2 is wastebasket embodying certain aspects of the presentinvention;

FIG. 3 is a view along 3-3 of FIG. 2;

FIG. 4 is a lateral sectional view of another embodiment of the presentinvention;

FIG. 5 is a lateral elevation of a bracket post;

FIG. 6 is a top plan view of a first mounting strap;

FIG. 7 is a lateral view of a second mounting strap;

FIG. 8 is a top view of the strap of FIG. 7;

FIG. 9 is a top view of a mounting socket;

FIG. 10 is atop plan view of the socket of FIG. 9 mounted to the strapof FIG. 8;

FIG. 11 is a top view of the strap of FIG. 6 fitted to a roundwastebasket;

FIG. 12 is a top view of the strap of FIG. 6 fitted to an ovalwastebasket;

FIG. 13 is a top view of the strap of FIG. 6 fitted to a rectangularwastebasket;

FIG. 14 is a partial lateral elevation of a mounting post;

FIG. 15 is a sectional schematic view of a wastebasket with a selectedembodiment of the present invention therein;

FIG. 16 is a partial sectional view of a liner mounted to thewastebasket of FIG. 2;

FIG. 17 is a perspective view of a wastebasket liner embodying certainprinciples of the present invention;

FIG. 18 is a variation of the wastebasket liner shown in FIG. 11;

FIG. 19 is a partial sectional detail of a custom liner mounted to thewastebasket of FIG. 2;

FIG. 20 is a partial sectional detail of an alternate manner to mount acustom liner to the wastebasket of FIG. 2;

FIG. 21 is a partial sectional detail of another alternate manner tomount a custom liner to the wastebasket of FIG. 2;

FIG. 22 is a partial lateral elevation of another embodiment of thepresent invention;

FIG. 23 is a partial lateral elevation of another embodiment of thepresent invention;

FIG. 24 is a partial lateral elevation of another embodiment of thepresent invention;

FIG. 25 is a partial sectional lateral elevation of another embodimentof the present invention; and

FIG. 26 is a partial sectional lateral elevation of another embodimentof the present invention.

While the following describes an example or examples of the presentinvention, it is to be understood that such description is made by wayof example only and is not intended to limit the scope of the presentinvention. It is expected that alterations and further modifications, aswell as other and further applications of the principles of the presentinvention will occur to others skilled in the art to which the inventionrelates and, while differing from the foregoing, remain within thespirit and scope of the present invention as herein described andclaimed. Where means plus function clauses are used in the claims, suchlanguage is intended to cover the structures described herein asperforming the recited functions and not only structural equivalents butequivalent structures as well. For the purposes of the presentdisclosure, two structures that perform the same function within anenvironment described above, may be equivalent structures.

DETAILED DESCRIPTION OF THE DRAWINGS

Referring now to FIG. 1, the numeral 10 identifies a prior artwastebasket of the type having a side wall 12 and a rim 14 defining awastebasket opening 16. Wastebasket 10 has a solid bottom 18.

Referring now to FIG. 2, the numeral 20 identifies a combinedwastebasket and liner support embodying certain aspects of the presentinvention. Wastebasket 20 has a side wall 22 having an outer surface 24and an inner surface 26. Side wall 22 terminates at a rim 28 whichdefines a wastebasket opening 30. In the embodiment shown, wastebasket20 has a solid bottom 32.

Basket 20 has at least one liner support arm 34 formed on inner surface26. The embodiment shown in FIG. 2 has four such support arms 34.Support arms 34 are preferably formed to extend axially along innersurface 26 beginning proximate rim 28 and are preferably tapered toprovide additional strength.

Referring now to FIG. 3, a portion of side wall 22 is shown with linersupport arm 34 shown in section. In the embodiment shown, support arm 34is formed integrally with side wall 22 and has an inwardly extendingpost 36 formed at an angle α to side wall 22. Arm 36 and inner surface26 define therebetween a bight 38.

While FIG. 2 shows four support arms 34, it should be understood thatany desired number of such support arms may be fashioned on the interiorsurface of wastebasket 20 and the number and positioning of such armswill be determined by, inter alia, the size and shape of wastebasket 20as well as the configuration of the liner to be used with wastebasket20.

Referring now to FIG. 4, the numeral 40 identifies a prior artwastebasket of conventional construction having a side wall 42. Sidewall 42 has an outer surface 44 and an inner surface 46 and terminatesat a rim 48. Wastebasket 40 also has a solid bottom 50. Rim 48 defines awastebasket opening 52.

A liner support assembly 54 is shown positioned in wastebasket 40 havinga lower web or strap 56 to which post sockets 58, 60, 62, 64 and 66 areattached. As seen in FIG. 4, each post socket is hollow having a postsocket channel. For example, socket 58 has a socket channel 68.

A support rod 70 has a lower rod 72 telescopically fitted to an upperhollow tube 74. A liner support arm 76 is formed on upper tube 74 andpreferably faces the interior of wastebasket 40.

Referring now to FIG. 5, support rod 70 is shown in a lateral elevation.In the embodiment shown, lower rod 72 has a series of lower rod ports 78formed therealong, while upper tube 74 has a series of upper tube ports80 corresponding in size to rod ports 78. A sufficient number of lowerrod ports 78 and upper tube ports 80 are provided to make support rod 70conveniently adjustable.

The length of support rod 70 is adjusted by sliding lower rod 72 into orout of upper tube 74 until rod 70 is at a height which will fit theinterior of wastebasket 40. As seen in FIG. 4, a retaining pin 82 ispassed through a lower rod port 76 aligned with an upper tube port 80when said ports are aligned. This will hold support rod 70 in a selectedlength.

As seen in FIG. 5, support arm 76 has a post 84 which, in the embodimentshown, is attached to upper tube 74 and extends at an angle β to uppertube 74 forming thereby a bight 86.

Referring now to FIG. 6, a top plan view of lower strap 56 is shown withstrap 56 having a strap peg 88 formed proximate one end thereof in theembodiment shown. Strap 56 has rod sockets 58, 60, 62, 64 and 66attached thereto as well as rod socket 90. It is contemplated that anyselected number of rod sockets may be attached to strap 56 as desired. Aseries of adjusting ports 92 are formed through strap 56 at selectedintervals and are sized to allow strap peg 88 to be insertedtherethrough in order to hold strap 56 in a closed or loopedconfiguration.

Referring now to FIGS. 7 and 8, the numeral 94 identifies anotherembodiment of a strap having a series of strap apertures 96 formedtherealong and a strap peg 98 positioned proximate one end of strap 94and sized to fit through apertures 96. As with lower strap 56, thelength of strap 94 is adjusted by selecting an aperture 96 through whichpeg 98 is inserted.

Referring now to FIG. 9 the numeral 100 identifies a top plan view ofanother embodiment of a rod socket. Socket 100 has a socket channel 102into which a support rod 70 can be inserted. Socket 100 has a mountingpeg 104 formed thereon, sized to fit the strap apertures 96 of strap 94.

Referring now to FIG. 10, rod socket 100 is shown mounted to strap 94 byinserting peg 104 through strap aperture 96. It should be understoodthat any desired number of rod sockets 100 can be similarly attached tostrap 94 as needed.

Referring now to FIG. 11, strap 56 is shown with strap peg 88 insertedtherethrough to hold strap 56 in a circular configuration to fit withina circular wastebasket 106. This is accomplished by selecting a lengthfor strap 56 that will force rod sockets 108 against inner surface 110of wastebasket 106.

Referring now to FIG. 12, strap 56 is shown held in place by strap peg88 in a length sufficient to mold or shape strap 56 to the interior ofan oval wastebasket 112 in the same fashion as described above.

Referring now to FIG. 13, strap 56 is shown adjusted to a sufficientlength to make it conform to the interior of a rectangular wastebasket114. As seen in FIG. 9, strap 56 has four rod sockets 116 arranged tofit in the corners of wastebasket 114.

It should be understood that the descriptions of fitting strap 56 to theinteriors of a variety of wastebaskets apply also to strap 94 and to rodsockets 100, with a length for strap 94 selected to allow strap 94 to beslightly compressed inside the selected wastebasket. To this end, straps56 and 94 are preferably formed from a flexible and non-stretchablethermoplastic material. This is not intended to limit the choice ofmaterials suitable for said straps. Any thin, flexible material, such assteel strapping, can also be used.

Where the straps are to be fitted to specific wastebaskets, the strapsmay be made of a rigid material sized and shaped to fit the selectedbasket.

Referring now to FIG. 14, an upper tube 118 is shown, upon which a tubepeg 120 is formed on the outer surface thereof, preferably substantiallydiametrically opposite support arm 122. Tube peg 120 is sized and shapedto fit strap apertures 96 of strap 94.

Referring now to FIG. 15 an embodiment of the present invention is showninserted into a wastebasket 124 having a bottom 126. A lower mountingstrap 128 has a series of tube sockets 130 snap-fit thereon as describedhereinabove with respect to mounting strap 94 and tube socket 100. Asdescribed hereinabove, the length of strap 128 is adjusted to forcestrap 128 and tube sockets 130 to conform to the interior shape ofwastebasket 124.

Next, a selected number of support rods 132 are adjusted to a desiredlength for wastebasket 124 as described hereinabove with respect tosupport rods 70 and are then inserted into selected of tube sockets 130.

An upper mounting strap 134 is then snap-fit to each tube peg 136through a strap aperture 138. When all such tube pegs 136 have beensnap-fit to strap 134, strap 134 is then adjusted to length as describedabove to act as a spacer and reinforcement for support rods 132.

It is contemplated that straps 128 and 134 will preferably be identicalin construction. This will allow the support system of the presentinvention to be supplied in kit form, with tube sockets individuallyplaced on a mounting strap as dictated by the shape of the wastebasketand with support rods attached to one such strap at the top and insertedinto sockets snapped onto the bottom strap to hold them in a selectedconfiguration and position. Alternatively, support rods 132 may havemounting pegs formed thereon proximate the lower ends thereof and suchpegs may be snapped directly into lower strap 128.

While straps such as 56, 94, 128 and 134 have been described as beingadjustable by snapping a peg through a selected hole formed in thestrap, it should be recognized that other methods for adjusting theeffective length of the strap are also known and can be used. Forexample, it is known to fashion a series of serrations or teeth along afirst end portion of a flexible thermoplastic strap and pass thatportion of the strap through a receiver formed at the second end of thestrap. The receiver allows the serrated portion of the strap to passthrough in one direction but resists its passage in the oppositedirection. Thus, the length of the strap is set by passing the serratedend through the receiver until the desired effective length is reached.It is common for such receivers to include a release to allow the strapto be moved in the opposite direction, allowing the length of the strapto be adjusted in that direction or to allow the serrated end of thestrap to be completely withdrawn from the receiver.

Referring now to FIG. 16 a wastebasket liner 140 is shown held in placeby a support arm 142 similar in construction to support arms 34 and 76.A portion of the upper periphery 144 of liner 140 is forced into andfrictionally held in bight 146, with the remaining portion 148 of liner140 extending down along inner surface 150 of wastebasket 152. As can beappreciated, no part of liner 140 drapes over rim 154 of wastebasket152.

To aid in holding liner portion 144 the interior surface of support arm142 can be roughened, as by sandblasting, etching, scoring, or otherprocedures to form an irregular, non-smooth surface to more securelyengage liner 140. Alternatively, an adhesive band can be applied to theouter, upper periphery 144 of liner 140 to engage bight 146 as well asportions of inner surface 150 of the wastebasket.

Referring now to FIG. 17, numeral 156 identifies a wastebasket linerconstructed in accordance with certain aspects of the present invention.Liner 156 has an enclosed liner body 158 terminating at a rim 160 whichdefines a liner opening 162 through which items placed in thewastebasket are held. Liner 156 has a series of mounting holes 164formed through liner body 158 proximate rim 160. An added feature ofliner 156 is a draw string 166 contained within a channel 168 formedproximate rim 160. In the embodiment shown in FIG. 17, mounting holes164 are formed beneath channel 168.

Referring now to FIG. 18, another variation of a wastebasket liner isshown with liner 170 having a liner body 172 terminating in a rim 174which defines a liner opening 176. A series of mounting holes 178 isformed on liner 170 proximate rim 174. A drawstring 180 is positionedwithin a channel 182 formed proximate rim 174. In this embodiment,channel 182 includes mounting holes 178. A portion of drawstring 180 maybe pulled out from a selected mounting hole 178 to form handles 184, 186which may be used to remove liner 170 and pulled to close liner 170.

Use of the liner support embodiment shown herein to support awastebasket liner will now be described. Referring now to FIG. 19, apartial side sectional view of the embodiment described with respect toFIGS. 2 and 3 is shown with a wastebasket 188 having a side wall 190with an inner surface 192 from which a liner support arm 194 extends. Asdescribed hereinabove, support arm 194 has a post 196 formed at an angleto side wall 190 to form bight 198.

Support post 196 terminates in a post tip 200. As seen in FIG. 19, liner202 has a series of mounting holes 204 mounted thereon. One suchmounting hole is aligned with and inserted onto a support arm 196 tohold liner 202 in place without overlapping rim 206 of wastebasket 188.

An alternate manner of mounting liner 202 is shown in FIG. 20. A portionof drawstring 206 is pulled through selected of mounting holes 208forming loops 210 which are then placed over posts 196. Alternatively,post 196 is inserted into a mounting hole 208 such that drawstring 206remains within hole 204 and post 196 is positioned beneath drawstring206 and within hole 204 thus using both the material from the drawstringand the liner to support the liner.

Referring now to FIG. 21 an alternate liner construction is shown. Liner212 has at least one loop 214 attached to liner outer surface 216 which,in turn, is looped over post 218.

Referring now to FIG. 22 an alternate construction of a support arm isshown.

Support 220 is a segment of a cylinder with a frustoconical sidewall222, terminating at one end in a first lip 224 and at a second end insecond lip 226. In the embodiment shown, lip 224 defines a first opening228 and lip 226 defines a second opening 230, with the cross-sectionalarea of first opening 228 being larger than that of the second opening230.

In the embodiment of FIG. 22, support 220 is attached to interiorsurface 232 of wastebasket 234 with first and second openings 228, 230aligned substantially vertically.

Another version of support 220 is shown in FIG. 23, with support 220attached to interior surface 232 in a substantially horizontalalignment. In this embodiment, first opening 228 faces toward the viewerand second opening 230 faces away from the viewer as FIG. 24 is viewed.

Mounting a liner to support 220 is shown in FIG. 24. A portion 236 ofliner 238 is inserted into first opening 228 and pulled through secondopening 230, with liner 238 held by the frictional engagement of portion236 with inner surface 240 of support 220 and lip 242 of second opening230. When mounting a liner in the support seen in FIG. 23, liner 238 isheld in support 220 by pulling portion 238 through first and secondopenings 228, 230.

Other configurations of support 220 are also possible. For example, asseen in FIG. 24, a spring-loaded clamp 246 having a pivoting arm 248clamped by a spring 250 can be attached to a sidewall 252 of awastebasket 254 or, as described hereinabove, to a support rod 70. Apreferred embodiment has arm 248 rotating about a pivot 256 positionedintermediate arm 248 and wastebasket rim 258. A liner 260 is placed inbetween arm 248 and sidewall 252 when arm 248 is rotated away fromsidewall 252. When arm 248 is released, liner 258 is clamped between arm248 and sidewall 252.

Referring now to FIG. 26 another embodiment of the present invention isillustrated. A support bracket 262 has a grip 264 sized and shaped tooverlap and grip a portion of rim 266 of wastebasket 268. Bracket 262has a support arm 270 formed thereon and can be used to support awastebasket liner in the manners described above. As many supportbrackets 262 as deemed expedient may be used with only a minimal portionof rim 266 being covered and leaving the sidewall of wastebasket 268revealed.

It should be understood that the liners discussed hereinabove arepreferably sized to rest on and be supported by the bottom of thewastebasket into which each liner is placed.

It should also be understood that while certain of the supportsdescribed herein are shown as manufactured integrally with certain ofthe wastebaskets, said supports can also be supplied separately andattached to the interior surface of a conventional wastebasket by, interalia, screws, adhesive or the like. Other supports, hooks and the likecan also be substituted for the supports shown herein without departingfrom the spirit and scope of the invention.

It should be understood that while liners with drawstrings have beenshown the present invention will also accept and support liners withoutdrawstrings.

Where a particular support is described as formed on the interiorsurface of a wastebasket it should be recognized that the same supportcan also be formed on a support rod, such as rod 70, and vice versa.

The foregoing invention thus may be manufactured as an integral part ofa wastebasket or as a kit to be used with a standard wastebasket, withboth versions accepting wastebasket liners with or without mountingholes or drawstrings, in a manner which allows the entire outer surfaceof the wastebasket to be viewed.

It should be understood that while liners with drawstrings have beenshown the present invention will also accept and support liners withoutdrawstrings.

The foregoing invention thus may be manufactured as an integral part ofa wastebasket or as a kit to be used with a standard wastebasket, withboth versions accepting wastebasket liners with or without mountingholes or drawstrings, in a manner which allows the outer surface of thewastebasket to be viewed.

1. A support system for holding a liner in a receptacle, said receptacleof the type having a sidewall with inner and outer wall surfaces, saidsidewall terminating at a rim, said support system comprising: means forreleasably engaging said liner, said engaging means positioned alongsaid inner sidewall surface proximate said rim, a portion of said linerbeing held by said engaging means when said liner is placed within saidreceptacle.
 2. The apparatus as recited in claim 1 wherein at least oneof said engaging means is formed integrally with said receptacle and ispositioned on said inner sidewall surface proximate said rim.
 3. Theapparatus as recited in claim 2 wherein said engagement means comprisesat least one support arm oriented at an angle to said inner sidewall,said arm and said sidewall forming therebetween a bight, said linerportion held within said bight.
 4. The apparatus as recited in claim 3wherein at least a portion of said arm is roughened to increase thefriction between said arm and said liner.
 5. The apparatus as recited inclaim 1 wherein said system further comprises at least one support rodhaving first and second ends, said engaging means formed on said rodproximate said first end, said rod sized and dimensioned to positionsaid engaging means proximate said rim when said second end of said rodis placed in said receptacle; means for positioning said rod in saidreceptacle, said positioning means having at least one socket sized andshaped to hold said second rod end.
 6. The apparatus as recited in claim5 wherein said positioning means further comprises a mounting strap,said at least one socket attached to said strap.
 7. The apparatus asrecited in claim 6 wherein said positioning means further comprises asecond mounting strap, said second mounting strap attachable to said atleast one rod proximate said attachment means.
 8. The apparatus asrecited in claim 6 wherein said mounting strap is adjustable in length.9. The apparatus as recited in claim 1 wherein said engaging means is aclamp.
 10. The apparatus as recited in claim 1 wherein said engagementmeans is cylindrical and has an inner wall and an outer wall, said innerand outer walls terminating at a first end of said engagement means at afirst lip, and said inner and outer walls terminating at a second end ofsaid engagement means at a second lip, said first and second lipsdefining first and second mouths, respectively, whereby a portion ofsaid liner can be inserted into one said mouth and held by saidengagement means.
 11. A support system for holding a liner in areceptacle, said receptacle of the type having a sidewall with inner andouter wall surfaces, said sidewall terminating at a rim, said supportsystem comprising: means for engaging said liner; at least one supportrod having first and second ends, said engaging means formed on said rodproximate said first end, said engaging means comprising at least onesupport arm oriented at an angle relative to said inner sidewall, saidarm and said support rod forming therebetween a bight, a portion of saidliner being held by said engaging means when said liner is placed withinsaid receptacle, said liner portion held within said bight.
 12. Theapparatus as recited in claim 11 wherein at least a portion of said armis roughened to increase the friction between said arm and said liner.13. The apparatus as recited in claim 11 wherein said system furthercomprises each said rod sized and dimensioned to position said engagingmeans proximate said rim when said second end of said rod is placed insaid receptacle; means for positioning said rod in said receptacle, saidpositioning means having at least one socket sized and shaped to holdsaid second rod end.
 14. The apparatus as recited in claim 13 whereinsaid positioning means further comprises a mounting strap, said at leastone socket attachable to said strap.
 15. The apparatus as recited inclaim 14 wherein said positioning means further comprises a secondmounting strap, said second mounting strap attachable to said at leastone rod proximate said attachment means.
 16. The apparatus as recited inclaim 14 wherein said mounting strap is adjustable in length.
 17. Theapparatus as recited in claim 14 wherein said system further comprises aplurality of said sockets, each said socket attachable to said strap; aplurality of said rods, each said rod being insertable into one saidsocket, whereby a number of rods and sockets may be selected to fit saidsystem into said receptacle.
 18. A support system for holding a liner ina receptacle, said receptacle of the type having a sidewall with innerand outer wall surfaces, said sidewall terminating at a rim, saidsupport system comprising: means for engaging said liner; said engagingmeans comprising at least one support arm oriented at an angle relativeto said inner sidewall surface, said liner comprising a bag-likeconfiguration having a liner body terminating at a liner lip, said linerlip defining a liner mouth; and a series of apertures formed on saidliner body proximate said liner mouth, whereby said liner is engaged bysaid support arm when one said aperture is placed over and onto one saidsupport arm.
 19. The apparatus as recited in claim 18 wherein saidapertures are formed on said liner at selected intervals.
 20. Theapparatus as recited in claim 19 wherein said liner further comprises achannel formed on said liner by folding a portion of said linerproximate said liner mouth onto said liner and securing said foldedportion thereto, said series of apertures formed through said channel tocommunicate with the interior of said liner.
 21. The apparatus asrecited in claim 20 wherein a drawstring is positioned within said linerchannel.